Commit Graph

66 Commits

Author SHA1 Message Date
Jeffrey Wilcke 10a57fc3d4 consensus, core/*, params: metropolis preparation refactor
This commit is a preparation for the upcoming metropolis hardfork. It
prepares the state, core and vm packages such that integration with
metropolis becomes less of a hassle.

* Difficulty calculation requires header instead of individual
  parameters
* statedb.StartRecord renamed to statedb.Prepare and added Finalise
  method required by metropolis, which removes unwanted accounts from
  the state (i.e. selfdestruct)
* State keeps record of destructed objects (in addition to dirty
  objects)
* core/vm pre-compiles may now return errors
* core/vm pre-compiles gas check now take the full byte slice as argument
  instead of just the size
* core/vm now keeps several hard-fork instruction tables instead of a
  single instruction table and removes the need for hard-fork checks in
  the instructions
* core/vm contains a empty restruction function which is added in
  preparation of metropolis write-only mode operations
* Adds the bn256 curve
* Adds and sets the metropolis chain config block parameters (2^64-1)
2017-05-18 09:05:58 +02:00
Felix Lange 207bd7d2cd eth: add debug_storageRangeAt 2017-04-25 02:14:32 +02:00
Felix Lange 4047ccad2f trie: add start key to NodeIterator constructors
The 'step' method is split into two parts, 'peek' and 'push'. peek
returns the next state but doesn't make it current.

The end of iteration was previously tracked by setting 'trie' to nil.
End of iteration is now tracked using the 'iteratorEnd' error, which is
slightly cleaner and requires less code.
2017-04-25 02:14:31 +02:00
Felix Lange a13e920af0 trie: clean up iterator constructors
Make it so each iterator has exactly one public constructor:

- NodeIterators can be created through a method.
- Iterators can be created through NewIterator on any NodeIterator.
2017-04-25 02:14:31 +02:00
Felix Lange 0f4b75bea2 core/state: expose CommitTo 2017-03-23 15:58:42 +01:00
Péter Szilágyi b117da2db3
core/state: drop most of a logs (useless at this volume) 2017-02-28 15:51:30 +02:00
Péter Szilágyi d4fd06c3dc
all: blidly swap out glog to our log15, logs need rework 2017-02-23 12:16:44 +02:00
Jeffrey Wilcke 024d41d0c2 core, core/state, core/vm: remove exported account getters (#3618)
Removed exported statedb object accessors, reducing the chance for nasty
bugs to creep in. It's also ugly and unnecessary to have these methods.
2017-02-22 23:29:59 +01:00
Felix Lange c8695fae35 logger: remove Core verbosity level (#3659) 2017-02-15 10:14:44 +01:00
Nick Johnson 17d92233d9 cmd/geth, core: add support for recording SHA3 preimages (#3543) 2017-01-17 12:19:50 +01:00
Péter Szilágyi 18c77744ff
all: fix spelling errors 2017-01-06 19:44:35 +02:00
Felix Lange 35a7dcb162 all: gofmt -w -s 2017-01-06 15:52:03 +01:00
Felix Lange 7731061903 core/vm: move Log to core/types
This significantly reduces the dependency closure of ethclient, which no
longer depends on core/vm as of this change.

All uses of vm.Logs are replaced by []*types.Log. NewLog is gone too,
the constructor simply returned a literal.
2017-01-06 14:15:22 +01:00
Jeffrey Wilcke 3fc7c97827 core, core/vm: implemented a generic environment (#3348)
Environment is now a struct (not an interface). This
reduces a lot of tech-debt throughout the codebase where a virtual
machine environment had to be implemented in order to test or run it.

The new environment is suitable to be used en the json tests, core
consensus and light client.
2016-12-06 02:16:03 +01:00
Jeffrey Wilcke aad4890082 cmd/geth, core, light, mobile: removed state account StartingNonce
All account's nonce start at 0.
2016-11-23 09:34:01 +01:00
Jeffrey Wilcke 445feaeef5 core, core/state, trie: EIP158, reprice & skip empty account write
This commit implements EIP158 part 1, 2, 3 & 4

1. If an account is empty it's no longer written to the trie. An empty
  account is defined as (balance=0, nonce=0, storage=0, code=0).
2. Delete an empty account if it's touched
3. An empty account is redefined as either non-existent or empty.
4. Zero value calls and zero value suicides no longer consume the 25k
  reation costs.

params: moved core/config to params

Signed-off-by: Jeffrey Wilcke <jeffrey@ethereum.org>
2016-11-13 10:44:04 +01:00
Péter Szilágyi 88a593d559
cmd/geth, trie: report on trie cache unloads, also add debug log 2016-10-19 17:31:19 +03:00
Péter Szilágyi 4f46bd19d0
cmd, core/state: allow configurable trie cache generations 2016-10-19 14:55:13 +03:00
Felix Lange 44f419ec0f core/state: bump trie cache values slightly 2016-10-18 04:57:47 +02:00
Felix Lange 40cdcf1183 trie, core/state: improve memory usage and performance (#3135)
* trie: store nodes as pointers

This avoids memory copies when unwrapping node interface values.

name      old time/op  new time/op  delta
Get        388ns ± 8%   215ns ± 2%  -44.56%  (p=0.000 n=15+15)
GetDB      363ns ± 3%   202ns ± 2%  -44.21%  (p=0.000 n=15+15)
UpdateBE  1.57µs ± 2%  1.29µs ± 3%  -17.80%  (p=0.000 n=13+15)
UpdateLE  1.92µs ± 2%  1.61µs ± 2%  -16.25%  (p=0.000 n=14+14)
HashBE    2.16µs ± 6%  2.18µs ± 6%     ~     (p=0.436 n=15+15)
HashLE    7.43µs ± 3%  7.21µs ± 3%   -2.96%  (p=0.000 n=15+13)

* trie: close temporary databases in GetDB benchmark

* trie: don't keep []byte from DB load around

Nodes decoded from a DB load kept hashes and values as sub-slices of
the DB value. This can be a problem because loading from leveldb often
returns []byte with a cap that's larger than necessary, increasing
memory usage.

* trie: unload old cached nodes

* trie, core/state: use cache unloading for account trie

* trie: use explicit private flags (fixes Go 1.5 reflection issue).

* trie: fixup cachegen overflow at request of nick

* core/state: rename journal size constant
2016-10-14 19:04:33 +03:00
Felix Lange 90fce8bfa6 core/state: rename Delete/IsDeleted to Suicide/HasSuicided
The delete/remove naming has caused endless confusion in the past.
2016-10-06 15:32:17 +02:00
Felix Lange 1f1ea18b54 core/state: implement reverts by journaling all changes
This commit replaces the deep-copy based state revert mechanism with a
linear complexity journal. This commit also hides several internal
StateDB methods to limit the number of ways in which calling code can
use the journal incorrectly.

As usual consultation and bug fixes to the initial implementation were
provided by @karalabe, @obscuren and @Arachnid. Thank you!
2016-10-06 15:32:16 +02:00
Péter Szilágyi cb84e3f029 cmd, core, internal, light, tests: avoid hashing the code in the VM 2016-10-01 16:01:58 +03:00
Péter Szilágyi 710435b51b core, eth, trie: reuse trie journals in all our code 2016-09-28 11:27:31 +03:00
Felix Lange cd791bd855 core, trie: replace state caches with trie journal 2016-09-28 11:27:28 +03:00
Felix Lange a59a93f476 core/state: track all accounts in canon state
This change introduces a global, per-state cache that keeps account data
in the canon state. Thanks to @karalabe for lots of fixes.
2016-09-26 10:09:52 +02:00
Nick Johnson 581b320b9d core/state: Fix memory expansion bug by not copying clean objects 2016-09-19 08:57:08 +08:00
Péter Szilágyi 6362a9d610 Revert "test, cmd/evm, core, core/vm: illegal code hash implementation"
This reverts commit 7a5b571c67.
2016-06-29 11:44:51 +03:00
Péter Szilágyi 67e9d33486 Revert "core: update DAO soft-fork number, clean up the code"
This reverts commit ba784bdf36.
2016-06-29 11:44:29 +03:00
Péter Szilágyi ba784bdf36 core: update DAO soft-fork number, clean up the code 2016-06-23 17:16:43 +03:00
Jeffrey Wilcke 7a5b571c67 test, cmd/evm, core, core/vm: illegal code hash implementation
This implements a generic approach to enabling soft forks by allowing
anyone to put in hashes of contracts that should not be interacted from.
This will help "The DAO" in their endevour to stop any whithdrawals from
any DAO contract by convincing the mining community to accept their code
hash.
2016-06-22 11:38:25 +03:00
Jeffrey Wilcke bb3651abc8 core/state, eth: Updated suicides objects when tracing transactions
Consensus rules dictate that objects can only be removed during the
finalisation of the transaction (i.e. after all calls have finished).
Thus calling a suicided contract twice from the same transaction:
A->B(S)->ret(A)->B(S) results in 2 suicides. Calling the suicided
object twice from two transactions: A->B(S), A->B, results in only one
suicide and a call to an empty object.

Our current debug tracing functionality replays all transaction that
were executed prior to the targetted transaction in order to provide
the user with an accurate trace.

As a side effect to calling StateDB.IntermediateRoot it also deletes any
suicides objects. Our tracing code never calls this function because it
isn't interested in the intermediate root. Becasue of this it caused a
bug in the tracing code where transactions that were send to priviously
deleted objects resulted in two suicides rather than one suicide and a
call to an empty object.

Fixes #2542
2016-06-13 11:57:42 +02:00
Jeffrey Wilcke 5c39a1bb26 Merge pull request #2585 from karalabe/trie-dirty-tracking
core, core/state, trie: enterprise hand-tuned multi-level caching
2016-05-30 23:07:51 +02:00
Péter Szilágyi 8ee84584a4 core/state: return the starting nonce for non-existent accs (testnet) 2016-05-27 10:42:11 +03:00
Péter Szilágyi 748d1c171d core, core/state, trie: enterprise hand-tuned multi-level caching 2016-05-26 16:33:09 +03:00
Péter Szilágyi 886478b18b core/state, trie: don't leak database writes before commit 2016-01-20 12:09:24 +02:00
Péter Szilágyi 2d5d6d9d0e core/state: always commit in batches, just finish if not needed later 2016-01-13 12:04:03 +02:00
Péter Szilágyi 9e011ff1cd core, eth/downloader: ensure state presence in ancestor lookup 2016-01-04 16:27:23 +02:00
Felix Lange 1b89bd5d26 core/state, core/types use package rlp for state, receipt serialisation 2015-12-18 12:09:10 +01:00
Gustav Simonsson 1b1f293082 core/state, core, miner: handle missing root error from state.New 2015-10-16 02:22:06 +02:00
Jeffrey Wilcke 1de796f101 cmd, core, eth: added official testnet 2015-10-08 22:01:39 +02:00
Jeffrey Wilcke 361082ec4b cmd/evm, core/vm, test: refactored VM and core
* Moved `vm.Transfer` to `core` package and changed execution to call
`env.Transfer` instead of `core.Transfer` directly.
* core/vm: byte code VM moved to jump table instead of switch
* Moved `vm.Transfer` to `core` package and changed execution to call
  `env.Transfer` instead of `core.Transfer` directly.
* Byte code VM now shares the same code as the JITVM
* Renamed Context to Contract
* Changed initialiser of state transition & unexported methods
* Removed the Execution object and refactor `Call`, `CallCode` &
  `Create` in to their own functions instead of being methods.
* Removed the hard dep on the state for the VM. The VM now
  depends on a Database interface returned by the environment. In the
  process the core now depends less on the statedb by usage of the env
* Moved `Log` from package `core/state` to package `core/vm`.
2015-10-04 01:13:54 +02:00
Felix Lange a2d5a60418 core, core/state: batch-based state sync 2015-09-22 22:57:37 +02:00
Felix Lange 565d9f2306 core, trie: new trie 2015-09-22 22:53:49 +02:00
Felix Lange 8c4dab77ba all: move common.Database to package ethdb 2015-09-14 23:36:30 +02:00
Gustav Simonsson b81a6e6ab8 core, core/vm, core/state: remove unused functions 2015-09-10 21:10:58 +02:00
Jeffrey Wilcke 36f7fe61c3 core, tests: Double SUICIDE fix 2015-08-20 18:22:50 +02:00
Jeffrey Wilcke f715547fc7 core/state: Set log index. Closes #1226 2015-07-29 15:08:59 +02:00
Felix Lange bfbcfbe4a9 all: fix license headers one more time
I forgot to update one instance of "go-ethereum" in commit 3f047be5a.
2015-07-23 18:35:11 +02:00
Felix Lange 3f047be5aa all: update license headers to distiguish GPL/LGPL
All code outside of cmd/ is licensed as LGPL. The headers
now reflect this by calling the whole work "the go-ethereum library".
2015-07-22 18:51:45 +02:00